I just read an article in the Bangkok Post newspaper about a fisherman who washed ashore after losing his boat off Alaska. He was wearing a survival suit.
I have long considered buying such a suit. I wonder if anyone else has them as part of their survival inventory. How long would it take to put such a suit on and once clad, would one still be dexterous enough to continue to battle a severe storm? Could you dress in one of these suits within the confines of a small vessel which was in danger of going down, all the while being pitched and tossed in a tempest?
They are not expensive from a relative viewpoint and are buoyant, waterproof and provide very effective insulation against the cold.
Heres a link if you are not familiar with a variety of these suits